Depending on how much height you need, these have all the set back adjustment you'll ever need. Period correct too! I have two of these for some reason. Ironically most of the bikes I'd need them for would also need a taller post. This one is missing the quick release lever, so it may stay reasonable price wise. I've seen them go for around $100 before.,,,,BD

SR Sakae MTE 100 Layback 27 2 Seatpost Adjustable Setback | eBay